Saint GBA334 module 7 quiz

In a PERT network, the earliest (activity) start time is the

PERT and CPM are quantitative analysis tools designed to schedule and control large projects.

The expected time in PERT is

On a practical note — if we are using waiting line analysis to study customers calling a telephone number for service, balking is probably not an issue.

An arrival in a queue that reneges is one who

PERT was developed for a project for which activity or task times were uncertain.

The following represents a project with four activities. All times are in weeks.

According to the data in Table above, what is the minimum expected completion time for the project?

A suburban specialty restaurant has developed a single drive-thru window. Customers order, pay, and pick up their food at the same window. Arrivals follow a Poisson distribution while service times follow an exponential distribution. If the average number of arrivals is 6 per hour and the service rate is 2 every 15 minutes, what is the average number of customers waiting in line behind the person being served?

Given the following small project, the critical path is ________ days.

The study of waiting lines is called queuing theory.

Slack is the time an activity can be delayed without impacting the completion time of the project.

CPM was developed for use in managing projects about which we have good information about activity or task completion times.

In queuing analysis, total expected cost is the sum of expected ________ plus expected ________.

One of the most significant benefits of PERT is that it forces the project manager to sit down and plan the project in great detail—and thus come to an understanding of relationships between the activities.

Given the following small project, the critical path is ________ days.

A bank with a single queue to move customers to several tellers is an example of a single-channel system.

Slack time in a network is the

Given an activity's optimistic, most likely, and pessimistic time estimates of 2, 5, and 14 days respectively, compute the PERT expected activity time for this activity.

Frequently in queuing problems, the number of arrivals per unit of time can be estimated by a probability distribution known as the Poisson distribution.

The customer who arrives at a bank, sees a long line, and leaves to return another time is

A goal of many waiting line problems is to help a firm find the ideal level of services that minimize the cost of waiting and the cost of providing the service.

Lines at banks where customers wait for a teller window are usually representative of a

One difficulty in waiting line analysis is that it is sometimes difficult to place a value on customer waiting time.

Given an activity's optimistic, most likely, and pessimistic time estimates of 4, 6, and 14 days respectively, compute the PERT expected activity time for this activity.